BET

Fixed magnification, adjustable magnification, single-direction adjustable, bi-direction adjustable

Laser beam expander for the ultraviolet, visible and near-infrared spectral ranges. Our fixed-magnification sliding lens beam expanders are made of UV fused silica and can be plated with broadband anti-reflection coatings from 204 to 360 nm or narrow-band anti-reflection coatings at 266 nm, 355 nm, 532 nm, and 1064 nm. Visible and near-infrared fixed-magnification rotating lens beam expanders are coated with anti-reflection coatings from 400 to 650 nm, 650 to 1050 nm, and 1050 to 1620 nm. We also offer adjustable magnification beam expanders and reflective beam expanders. Due to the high damage threshold of the anti-reflection coating, laser beam expanders can be used for both continuous and pulsed lasers. In addition, the beam expander has a large input and output aperture, allowing diffraction-limited diffuse beams (or reduced beams) to be obtained from a variety of input beams